Scissor



FIG. 1 is a top front, left side perspective view of a scissor showing my new design, the rear portion being a mirror image of the front;

FIG. 2 is a top, front, left side perspective view thereof shown in an open position;

FIG. 3 is an enlarged left side elevation thereof; and

FIG. 4 is a right side elevation thereof. 

The ornamental design for a scissor, as shown and described. 